package com.theten52.demo.io.s3;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;

/**
 * Neety Client
 *
 * @author wangjin
 * @date 2021/3/14
 */
public class NettyClient {
    public void connect(String host, int port) throws Exception {
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            Bootstrap b = new Bootstrap();

            b.group(workerGroup);

            b.channel(NioSocketChannel.class);

            b.option(ChannelOption.SO_KEEPALIVE, true);

            b.handler(new ChannelInitializer<SocketChannel>() {
                @Override

                public void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new NettyClientIntHandler());

                }

            });

            // Start the client.

            ChannelFuture f = b.connect(host, port).sync();

            f.channel().closeFuture().sync();

        } finally {
            workerGroup.shutdownGracefully();

        }

    }

    public static void main(String[] args) throws Exception {
        NettyClient client = new NettyClient();

        client.connect("127.0.0.1", 8000);

    }

}